Danfoss FC 100 Series Operating Instructions Manual page 132

Troubleshooting
WARNING 77, Reduced power mode:
This warning indicates that the drive is operating in reduced
power mode (i.e. less than the allowed number of inverter
sections). This warning will be generated on power cycle when
the drive is set to run with fewer inverters and will remain on.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or not installed.
Also MK102 connector on the power card could not be instal-
led.
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default settings after a
manual reset.
ALARM 91, Analog input 54 wrong settings
Switch S202 has to be set in position OFF (voltage input) when
a KTY sensor is connected to analog input terminal 54.
ALARM 92, No flow
A no-load situation has been detected in the system. See
parameter group 22-2.
ALARM 93, Dry pump
8 8
A no-flow situation and high speed indicates that the pump
has run dry. See parameter group 22-2.
ALARM 94, End of curve
Feedback stays lower than the set point which may indicate
leakage in the pipe system. See parameter group 22-5.
ALARM 95, Broken belt
Torque is below the torque level set for no load, indicating a
broken belt. See parameter group 22-6.
ALARM 96, Start delayed
Motor start has been delayed due to short-cycle protection
active. See parameter group 22-7.
WARNING 97, Stop delayed
Stopping the motor has been delayed due to short cycle
protection is active. See parameter group 22-7.
WARNING 98, Clock fault
Clock Fault. Time is not set or RTC clock (if mounted) has
failed. See parameter group 0-7.
WARNING 201, Fire Mode was Active
Fire Mode has been active.
WARNING 202, Fire Mode Limits Exceeded
Fire Mode has suppressed one or more warranty voiding
alarms.
WARNING 203, Missing Motor
A multi-motor under-load situation was detected, this could
be due to e.g. a missing motor.
WARNING 204, Locked Rotor
A multi-motor overload situation was detected, this could be
due to e.g. a locked rotor.
ALARM 243, Brake IGBT
This alarm is only for F Frame drives. It is equivalent to Alarm
27. The report value in the alarm log indicates which power
module generated the alarm:
132
®
VLT HVAC Drive Operating Instructions
ALARM 244, Heatsink temperature
This alarm is only for F Frame drives. It is equivalent to Alarm
29. The report value in the alarm log indicates which power
module generated the alarm:
ALARM 245, Heatsink sensor
This alarm is only for F Frame drives. It is equivalent to Alarm
39. The report value in the alarm log indicates which power
module generated the alarm:
ALARM 246, Power card supply
This alarm is only for F Frame drives. It is equivalent to Alarm
46. The report value in the alarm log indicates which power
module generated the alarm:
ALARM 247, Power card temperature
This alarm is only for F Frame drives. It is equivalent to Alarm
69. The report value in the alarm log indicates which power
module generated the alarm:
®
MG.11.AD.02 - VLT is a registered Danfoss trademark
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.
1 = left most inverter module.
2 = middle inverter module in F2 or F4 drive.
2 = right inverter module in F1 or F3 drive.
3 = right inverter module in F2 or F4 drive.
5 = rectifier module.